baber/WOPTO huggingface dataset:
Patent GB-417644-A (GB)
Title: Improvements in or relating to recording sounds
IPC: G11B11/00
Filed: 1933-03-29
Abstract: 417,644. Recording and reproducing sound. SOC. RECHERCHE INDUSTRIELLE FRANCAISE (R.I.F.) SOC. D'ETUDES POUR L'EXPLOITATION DES BREVETS NUBLAT, 5, Rue GalilÚe, Paris. March 29, 1933, No. 23462/34. Convention date, March 31, 1932. Divided out of 417,597. [Class 40 (ii).] In recording sound by the removal, by means of a vibrating cutter, of a strip of constant width from an opaque layer covering a transparent film, the recording is supervised by reproducing the sound, immediately after recording, by means of a photo-electric system arranged adjacent to the point where the cutter operates. As shown, the film support 3 is apertured at 7, close to the recording tool 4, to allow the passage of a light beam transmitted from a lamp 9 by an optical system 10 through the film to a photo-electric cell 11, whereby reproduction is effected. The optical system may embody a fine slit, an image of which is projected in appropriate position on the sound track, as described in Specification 417,597. After a record has thus been made, the recording device 4, 12 may be moved transversely, so as to produce a second sound trace on the film, the cutter being actuated in this case by currents derived photo-electrically from the first trace, using the device 9, 10, 11. The amplifier employed to transmit the photo-electric currents to the mechanical recorder may be such that the higher frequencies are emphasized. Further, the second recording may be made with the film travelling at a reduced speed.
Patent GB-790799-A (GB)
Title: Improvements in or relating to multi-stage rotary vacuum pumps
Inventor: POWER BASIL DIXON
IPC: F04C27/02
Filed: 1955-08-15
Abstract: 790,799. Rotary pumps. EDWARDS HIGH VACUUM, Ltd. July 30, 1956 [Aug. 15, 1955], No. 23504/55. Class 110 (2). In an oil-sealed multi-stage vacuum pump of the outwardly-sliding radial vane type comprising low- and high-vacuum stages, 2, 3 respectively which are arranged in series in a housing 1, sealing oil is circulated through a first path constituted by the pump 2, the clearance between the bearing 9 and the shafts 10, 11, the pump 3 and the transfer duct 17 whilst a discrete quantity of said oil is fed through a second path constituted by a duct 15, the clearance between the bearing 9 and the shaft 11 and the pump 3. The duct 15 interconnects the two flow paths and prevents the flow of oil along the bearing from the pump 2 to the pump 3 during normal running conditions. The shafts are provided with channels 14, 12, as shown, the channel 12 communicacating with a region where the pressure is equal to the interstage pressure through a conduit 13. Oil is also fed to the pump 2 through a conduit 5 and is discharged through the valvecontrolled outlet conduit 6.
Patent GB-596965-A (GB)
Title: Improvements in or relating to tube reducing mills
IPC: B21B21/00
Filed: 1945-06-27
Abstract: 596,965. Bolling tubes ; cold-rolling. THURSTON, A. P. (Rockrite Processes, Inc.). June 27, 1945, No. 23548/47. Divided out of 596,926. [Class 83 (iv)] In a tube rolling mill of the pilger type in which the die rolls 70 are mounted in a reciprocating carriage 73, the carriage is provided with fore and aft pairs of rollers 83 by which it is suspended from horizontal tracks 82 above the point 75 at which the reciprocating means 35 is secured to the carriage and gears 85, secured to the rollers so as to rotate therewith, mesh with racks 86 secured to the frames of the machine at the sides of the roller tracks. The die-rolls 70 are rigidly secured to shafts 71 mounted on roller bearings 72 in the carriage 73 and are coupled together by gears 76. In addition, gears 77 at each end of the lower shaft 71 mesh with a rack 78 secured to the frame so that the dies are rotated as the carriage is rocked. In order to reduce vibration, the.centre of gravity of the carriage is kept as close as possible to the horizontal tracks 82 and the reciprocating arms 35 are secured to the carriage in approximately the same horizontal plane as the centre of gravity. The distance between the front and rear rollers 83 is at least four times and preferably seven times the distance between the track, and the horizontal plane containing the centre of gravity. The complete mill is described in Specification 596,926.
Patent GB-275812-A (GB)
Title: Improvements in brackets for the support of stretcher-platforms and seats in ambulance vehicles and the like
IPC: A61G3/00
Filed: 1926-09-25
Abstract: 275,812. Smith, T. Sept. 25, 1926. Ambulances. - Brackets for the support of stretcher platforms and of seats in ambulance vehicles and the like consist of a base part a adapted to be secured to the vehicle and a movable part b hinged to the part a, the part b being adapted to support on one face a stretcher tray and when turned over to present a seat on the other face. In the form shown the part a is T- shaped adapted to be secured by bolts a<3> at the wheel housing. The part b is hinged to the part a by means of a pivot c and its upper face when extended is disposed in a lower plane than that of the part a and carries a stretcher support n. The lower face carries a seat squab p. Margin r and rail q serve to position the stretcher legs s.
Patent GB-961783-A (GB)
Title: Composite piston rings
Inventor: PHIPPS GEORGE EDWARD
IPC: F16J9/16
Filed: 1962-06-20
Abstract: 961,783. Piston rings. BRITISH PISTON RING CO. Ltd. June 10, 1963 [June 20, 1962], No. 23688/62. Heading F2T. In a composite piston ring comprising first, second and third split rings, the second and third rings 11 and 12 having an annular width approximately half that of the first ring 10 and being mounted inside or outside of the first ring, the gaps in the rings are circumferentially staggered and relative rotation is prevented by projections, e.g. balls 13, on the first ring 10 engaging the gaps 11a, 12a in the second and third rings or by projections on the second and third rings engaging the gap 10b in the first ring. As shown in Figs. 1 and 3, the balls 13 are set in recesses 10a in the ring 10 and extend between semi-circular recesses 11b and 12b in the ends of the rings 11 and 12.
Patent GB-228585-A (GB)
Title: Improvements in and relating to the finishing of fabrics
IPC: D06M11/55
Filed: 1923-09-22
Abstract: 228,585. Tootal Broadhurst Lee Co., Ltd., and Foulds, R. P. Sept. 22, 1923. Mercerizing; crape effects, producing; designs, producing.-Woven fabrics containing cellulose are treated with sulphuric acid of crapeing strength without the aid of formaldehyde, are mercerized with or without tension before or after the sulphuric acid treatment, and are finally embossed or compressed. The first or the first and second step may be performed on the yarn before it is woven. Portions only of the fabric may be subjected to the sulphuric acid and caustic alkali treatments by the aid of a stencil or resist, the fabric then being embossed by a patterned roller or by hard calendering to give uniform appearance. In an example, sulphuric acid of 98‹ -110‹ Tw. is applied for five seconds or less to ten minutes, and after being mercerized under tension, the fabric is embossed with a heated roller having a pattern :n relief or intaglio. The embossed parts are soft, silky, and opaque, the pattern corresponding to the recessed parts of the roller being transparent. Specification 200,881 is referred to.
Patent GB-1061823-A (GB)
Title: Improvements in helical wall wave guides
IPC: H01G7/02
Filed: 1964-06-08
Abstract: 1,061,823. Waveguides. COMPAGNIE GENERALE D'ELECTRICITE. June 8, 1964 [June 21, 1963], No. 23726/64. Heading H1W. A dielectric substance comprising polar or ferroelectric molecules is interposed between a circular helical waveguide and an outer screen which may consist of a woven metallic fabric. It is stated that if such a substance exhibits relaxation phenomena within the centimetric or millimetric wave range attenuation over a wide band of modes other than the desired TE 01  mode is obtained. Suitable substances are the plumbates, titanates, niobates, tantalates and tungstates of alkaline-earth metals. Certain organic substances e.g. hydrated aluminiumguanadine sulphate may .also be used.
Patent GB-207850-A (GB)
Title: Improvements in dressfitting and like pins
IPC: A44B9/04
Filed: 1922-09-01
Abstract: 207,850. Singer, E. J. Sept. 1, 1922. Pins, dress and like.-A pir adapted for use in dressfitting is formed of brass or fine springy steel wire a, Fig. 1, pointed ai b, and bent or curved over sc that the part d is inclined downward, its curved end e touching or nearly touching the shank a, preferably at about its centre. The end e is curved outward to permit the passage of the fabric between it and the shank. In the modification shown in Fig. 2, a loop f is formed at the head to increase the resiliency of the pin.
Patent GB-1015293-A (GB)
Title: Improvements in systems for controlling d.c. motors
Inventor: BENISTON PATRICK THOMAS
IPC: B66C13/24
Filed: 1963-06-14
Abstract: 1,015,293. Control of D.C. motors. CLARKE, CHAPMAN & CO. Ltd. June 23, 1964 [June 14, 1963], No. 23799/63. Heading H2J. A D.C. hoist or winch motor 10 is supplied from three-phase mains through rectifier bridges 22, 24, the bridge 22 having the higher currentcarrying capacity since it is in use when the motor is handling a heavy load. The bridge 24 is only of sufficient size to absorb the energy of a light load when braking in a hoist operation, or accelerating a light load when lowering. The bridges 22, 24 may comprise silicon controlled rectifiers. A reversing switch 20 may be provided.
Patent GB-732024-A (GB)
Title: Improvements in or relating to a high-frequency multi-layer conductor
IPC: H01P3/18
Filed: 1953-08-28
Abstract: 732,024. Conductors. SIEMENS & HALSKE AKT.-GES. Aug. 28, 1953 [Aug. 28, 1952], No. 23898/53. Class 36. In a high - frequency multi-layer conductor consisting of alternate thin layers of metal and insulation, the conductor is formed by one or more foils arranged longitudinally or with a long lay and extending spirally around the axis or core of the conductor, the conductivity of the metal layers being greater in the longitudinal direction than in the transverse direction. A number of foils may be applied in succession, alternate ones being applied as oppositely directed spirals, and each being secured by an insulating retaining band. An insulating foil 23 may be provided with a member of longitudinally extending metal strips 24, 241, 24<11>, the strips being separated from each other and being of such a width that in the finished conductor they form practically closed layers. Alternatively there may be a number of metal strips to each layer. The strips may be arranged so that in the plane separating the forward and return directions in the finished conductor a relatively large gap 26 is formed between the strips, or one or more metal layers may be omitted at this point. The inner core may consist of two parts 28, 29 between which the beginning of the foil 23 is clamped. Metal strips may be formed on insulating foil by sticking on metal foil strips, by evaporation of metal and subsequent galvanic treatment, or by joining metal and insulating foils together and then removing strips of the metal by chemical or electrochemical means.
Patent GB-991552-A (GB)
Title: Improvements in or relating to the manufacture of homocysteic acid
Filed: 1963-06-14
Abstract: Homocysteic acid is prepared by reacting together in aqueous solution acrolein, sulphurous acid or sulphur dioxide, hydrogen cyanide or a substance capable of releasing cyanide ions in aqueous solution and ammonia or a substance capable of releasing ammonium ions in aqueous solution to form an intermediate product which is subsequently hydrolysed to form the desired homocysteic acid or a salt thereof. Carbon dioxide or a substance capable of releasing carbonate ions in aqueous solution may also be introduced into said aqueous solution to react with said acrolein and other reactants. The various reactants may be added in any order and some may be pre-reacted with other reactants before addition of the remaining reactants.  Intermediate heating stages may also be employed.  Specifications 941,498 and 991,551 are referred to.
Patent GB-675337-A (GB)
Title: Improvements in heavy current resistors
IPC: H01C3/00
Filed: 1950-09-29
Abstract: 675,337. Metal grid resistors. SCHAEFER, J. Sept. 29, 1950, No. 23908/50. Class 37. A heavy current resistor comprises a woven wire square-mesh screen or netting, Fig. 5, with longitudinal wires 8 of nickel-chromium alloy or other resistance metal and transverse heat-dissipating wires or strands 12 in heat conductive contact with the longitudinal wires 8 only at the crossing points and having free extremities and made of resistance metal or, and this is preferred, of stainless steel. In use with current traversing the longitudinal wires 8 there will be substantially zero current flow in the transverse strands 12 since the latter intersect the longitudinal wires 8 at points of substantially equal potential. The free extremities of the strands 12 facilitate expansion and contraction with thermal changes. One arrangement embodying the woven screen is shown, Figs. 1 and 2, wherein a flexible grid segment 2 is supported by flanged sections 4 between terminals 6. In another arrangement, Figs. 6 and 7 (not shown), two U-shaped grids subtend between the terminals and an intermediate support.
Patent GB-915931-A (GB)
Title: Improvements in or relating to silicone resins
IPC: C08G77/00
Filed: 1961-07-03
Abstract: Copolymers consisting essentially of from 85 to 97 mol. per cent of monophenyl siloxane and from 3 to 15 mol. per cent of an organosilicon polymer of the unit general formula <FORM:0915931/IV(a)/1> in which R is a monovalent hydrocarbon or substituted hydrocarbon radical, are made conventionally by hydrolysis of the corresponding silanes.  The copolymers can be laminated or moulded, in known manner, with inorganic fillers, e.g. glass roving, glass fabric, asbestos fabric, asbestos fibres, powdered silica, diatomaceous earth, sand, clay, aluminium silicate, alumina, titania, magnesia and mica.  In a typical example (1) a mixture of PhSiCl3 and the meta and para isomers of <FORM:0915931/IV(a)/2> (Ph=phenyl, Me=methyl) was diluted with toluene, slowly added (45 minutes) to a mixture of butyl acetate, toluene, water and isopropanol, and stirred for 1 hour, with subsequent separation of the solvent layer and purification to yield a solution of the desired copolymer.  Uses: The compositions find use as structural members for aircraft and other automotive equipment.
Patent GB-296303-A (GB)
Title: Improvements in or relating to the electrical determination of irregularities in thestructure of massive metal bodies
IPC: G01N27/83
Filed: 1928-08-21
Abstract: 296,303. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts Ges.). Aug. 27, 1927, [Convention date]. Magnetic t e s t s.- Irregularities in the structure of massive metal bodies, such as castings and forgings, are determined by passing a current through the body and observing irregularities in the magnetic field produced consequent upon asymmetrical distribution ot the current. As shown in Fig. 1<b> for testing a drum-shaped body K having a central cavity, a coil a is placed within the cavity and connected to a ballistic galvanometer G. A current is passed between opposite ends of a diameter of the body K from a battery B. In the absence of a flaw, the current divides equally around the central cavity and no throw on the galvanometer is produced on breaking the circuit by a switch S. If a flaw F is present. asymmetry of current flow is produced, causing corresponding asymmetry of the magnetic field and therefore producing an electromotive force in the coil a on opening the switch S. By moving the points at which the current enters and leaves the body K until no deflection is obtained on breaking the circuit, the flaw F may be localized as lying in the diameter between these points. In the case of a body without a central cavity, external coils b1, b2, Fig. 2<b> are oppositely connected in series with one another and with the ballistic galvanometer G. Alternatively current may be passed along the axis of the body as shown in Fig. 3<b>, differential search-coils c1, c2 being arranged with the plane of their windings containing the axis of the body E. Instead of a ballistic method, a varying current may be employed, or the search coils may be rotated, the voltage generated being measured. The invention is applicable to the determination of flaws in magnetic or non-magnetic bodies.
Patent GB-359610-A (GB)
Title: Manufacture of arsonic acids
IPC: C07F9/74
Filed: 1930-08-11
Abstract: Nitropyrocatechin diethylcarbamic acid ester and nitropyrocatechin-carbonic acid piperidide are reduced in alcoholic solution by means of hydrogen in the presence of nickel to the corresponding amino-compounds.ALSO:3 : 4-Dihydroxybenzene-1-arsonic acids are manufactured by saponifying a 1-arsonic acid-3 : 4-dihydroxybenzene carbamic acid ester, or a derivative or nuclear nitro-substitution product thereof.  Derivatives specified are those in which the hydrogen of the amino group is replaced by alkyl, aryl, or an unsubstituted or substituted amino group, or in which the nitrogen attached to the carbonyl group forms part of a ring.  The starting materials are prepared by adding bases to nitropyrocatechincarbonate, reducing, diazotizing, and treating with arsenious acid.  In examples: (1) pyrocatechin is nitrated and the product treated with diethylamine to produce nitropyrocatechin diethylcarbamic acid ester ; this is reduced in alcoholic solution by means of hydrogen in the presence of nickel and the amino-compound is diazotized and treated with arsenious acid, yielding arsonic acid-pyrocatechin diethycarbamic acid ester, which is saponified with hydrochloric acid to give 3 : 4-dihydroxybenzene-1-arsonic acid; (2) 1-nitro-3 : 4-dihydroxybenzene carbonate is treated with piperidine, producing nitropyrocatechin-carbonic acid piperidide, which is converted by the method of (1) to pyrocatechin-carbonic acid piperidide arsonic acid; any of this compound remaining in solution may be separated by conversion into the arsenobenzene and subsequent oxidation, according to Specification 360,970; by hydrolysis with water, alkali, or dilute hydrochloric acid, 3 : 4-dihydroxybenzene-1-arsonic acid is produced.  Azo dyes.-Aminopyrocatechin-carbonic acid piperidide may be diazotized and coupled with R-salt yielding an intense violet-red coloration.
Patent GB-321482-A (GB)
Title: Improvements in and relating to boxes and the like
IPC: B65D25/10
Filed: 1928-08-21
Abstract: 321,482. Collings, J. Aug. 21, 1928. Boxes and receptacles.- Cardboard &c. boxes &c. intended to contain a series of articles, e.g. toy soldiers, for display have provided on or formed in the box bottom a an open groove or recess c in which the base b<1> of the figure or other article b is supported, the lid contacting one edge of the base to hold the article clamped in position. When the part c is removed from the box it may serve as a stand or support for the article.
Patent GB-1145029-A (GB)
Title: Improvements in or relating to keyboard operating apparatus
IPC: G10F3/00
Filed: 1966-05-31
Abstract: 1,145,029. Typewriters etc.; selective printing. DALE ELECTRONICS. 31 May, 1966 [23 Oct., 1963], No. 24234/66. Heading B6F. [Also in Divisions G4 and G5] A programmer for a piano, typewriter or other keyed instrument consists of a vacuum chamber 12 exhausted by a pump 36, access to the atmosphere being provided by apertures 21, one for each of the keys to be operated, which are opened selectively by an apertured tape 68 driven between rollers 64, 66. When air enters through one of the holes 21, unblocked by a hole in the tape 68, a leaf spring 23 is forced into contact with a contact bar 28 to complete a circuit for a solenoid which acts directly on the instrument key. The solenoid assembly (Figs. 2 and 3, not shown) may be mounted over the front of the keys or under the back and consists of two rows of solenoids, with one solenoid for each key. One row is mounted behind and slightly higher than the other. Both rows consist of two U- shaped channels which provide the magnetic circuits for all the solenoids in them and in which individual solenoids may be adjusted longitudinally and then clamped in position.
Patent GB-428265-A (GB)
Title: Cantilever type of landing gear for flying machines
IPC: B64C25/00
Filed: 1934-08-22
Abstract: 428,265. Aircraft landing - gear. MESSERSCHMITT, W., 118a, Haunstetterstrasse, Augsburg, Germany. Aug. 22, 1934, No. 24248. Convention date, Aug. 23, 1933. [Class 4] [See also Group XXXIV] A cantilever strut carrying a wheel, float or skid is arranged to break under excessive landing shock at a rupturing zone provided where the strut protrudes from the fuselage, wing or nacelle in which it is fixed. The strut c, provided with a shock-absorbing arrangement, is fixed to a conical tube f, forming part of the wing attachment frame of the fuselage, by an intermediate member e in which the rupturing zone is formed. The cross-section of the member e may have the same or different movements of resistance about longitudinal and transverse axes. An additional rupturing zone h may be formed where the stub-axle of the landing wheel d is joined to the strut c to avoid excess stresses in the axial direction of the strut.
Patent GB-426302-A (GB)
Title: Improved transmission chain
IPC: F16G13/06
Filed: 1934-08-24
Abstract: 426,302. Driving - chains. SEBIN & CIE, M., 79, Rue d'AngoulÛme, Paris. Aug. 24, 1934, No. 24411. Convention date, July 7. [Class 24] In transmission roller chains as described in Specification 14290 /09, [Class 24], comprising inner and outer pairs of link plates a, c, joint pins e and securing washers f, segmental bushes b, d secured respectively to the outer and inner link plates so as to rotate therewith and rollers g surrounding the bushes, the segmental bushes are forced into the link plates so as to space the latter, and the washers are spaced initially from the link plates so as to allow longitudinal play and free rotation of the joint pins.
Patent GB-339603-A (GB)
Title: Improvements in the manufacture of artificial silk filaments
IPC: D01F1/10
Filed: 1929-08-09
Abstract: 339,603. Singmaster, J. A. May 8, 1929, [Convention date]. Cellulose and cellulose ester solutions, processes for making filaments from.-For modilying the lustre and covering power of artificial silk by incorporating in the filaments fine particles of inert white pigment, the latter is first distributed in the solvent used for the solution of the cellulose material, or in a portion of such silicate, and the preparation of the spinning solution is so arranged that, after the addition of the dispersed pigment, the resulting solution is passed through at least a part, preferably the whole, of the filtering system. By filtering the solution after the addition of the pigment, the larger particles of the latter are removed and at the same time aggregations of particles are broken up. Thus, in the manufacture of nitrocellulose silk, the pigment is thoroughly wetted and mixed with a portion of the alcohol, the remainder of the alcohol and the ether are then added, and subsequently the nitrocellulose, after which the solution is passed through the filtering system. The artificial silk may be made by any of the known methods. Pigments suitable for use with nitrocellulose and cellulose acetate are : titanium dioxide; titanium dioxide mixed with barium sulphate; zinc sulphide or oxide; lithopone; zirconium or thorium oxide; blanc fixe; alumina fume; sublimed white lead. Specifications 274,054, 290,263, 290,693, 294,623, and 297,364 are referred to.